Apparatus for the preservation of eggs



Dec. 10,; 1935. P. DOSTAL 2,023,725v

APPARATUS FOR THE PRESERVATION 0F EGGS Filed Aug. 24, 1933 Patented Dec. 10, 1935 PATENT. OFFICE 2,023,725 APPARATUS FOR THE PRESERVATION or was Paula Dostal, Vienna, Austria Application August 24, 1933, Serial No. 686,577 In Austria August 26, 1932 2 claims. 01. 99-2) It is not possible to preserve eggs and to maintain the same in fertile condition for a year ormore with the known apparatuses for the preservation of eggs, in which the eggs stored in a receptacle are turned preferably at intervals of 24 hours in such a manner that theair bubble present in the skin enclosing the white of the egg is brought to the opposite surface of the egg after each time the egg is turned through 180. The

10 cause for this objection is that during the turning the air bubble always returns to the same point of the egg skin after one or several turning movements with the result that, if the eggs are stored for a relatively long time, the egg skin becomes brittle at the points at which the air bubble repeatedly comes into contact with the egg skin, in spite of the egg being periodically turned, and

allows the air to penetrate at the points which the containers, which accommodate the eggs,-

must not be turned at uniform intervals, as was hitherto assumed necessary in order to obtain a good preservation, but that, if the storage lasts longer, the intervals between every two successive turning operations must always become shorter if the eggs are to be kept fresh and fertile. Y A device for carrying out the method is illustrated by way of example in the acco drawing in which: Fig. 1 shows the apparatus in elevation.

Fig. 2 is a,tic view of a detail of the control clock actuating the apparatus.

The eggs to be preserved are accommodated in any suitable manner in a container I so that, by a turning the container the eggs cannot be broken. The container l is rotatable around a shaft'l within a frame 2. The frame 2 is also rotatable around a driving shaft 2 within a second frame I. A bevel wheel 6 is loosely mounted on the driving shaft 2, driven by an electric motor Ii through the intermediary of a worm gearing l2, I4, I! and It, and meshes with a bevel wheel I keyed on the shaft 4. To the bevel wheel I a grooved pulley l'l maybe fixed adaptedtobe rotated by means of a cord is from a'grooved pulley I I keyed on a motor shaft 2|. The bevel wheel 5 may-however be locked in the frame 2 by suitable means, such as levers or the like not shown on the drawing and thereby be prevented from independently rotating. By suitably selecting the diameters of the bevel wheels 5 and I it is possible, to adjust the turning movements of the container I carried out at certain intervalsby the motor il in sucha manner that the air bubbles 5 contained in-the eggs travel along a helical path within the egg skin during the rotation of the container. a

The motor ii is controlled by a control clock which allows the motor to start at certain inter- 1o vals and to. remain running until the container I has performed a rotation of for example and whichv then breaks the circuit supplying current to the motor II, and repeats this sequence of operation after the expiration of a further period. I

The control clock is equipped with a device, which renders it possible for the clock to run through the intervals expiring between every two consecutive control periods in gradually decreasing time. For this purpose a balance lever 8, provided on a I rotatable ring 24, lengthening and shortening the balance spring 22 is mounted on the balance 2i of a known control clock. This lever I carries a toothed rim 8' with teeth I! influenced by a feed wheel 9 driven by. the movement of the control 2 clock by suitable transmission wheels not shown in the drawing, in such a manner that the feed wheel rotates the distance of one tooth ll in 24 hours. Thus, the balance spring is shortened every 24 hours-and consequently the controlclock 30 runs quicker after every 24 hours than during the preceding 24 hours period. Thus the control for effecting the turning of the container l takes place in intervals gradually becoming shorter and consequently the periods ofrest of the con:

tainergraduallybecomeshorterastheperiod of storage lasts longer.

I'claim:

1. An apparatus for the preservation of eggs, comprising in combination a stationary frame, a driving shaft iournalled in said stationary frame, means for rotating-11nd driving shaft, a clock adapted to periodically enga e and discusses said means, a rotary on said driving shaft, a second shaft iournalled in said rotary frame, an egg container mounted on said second shaft, a bevel wheel, keyed on said second shaft, a second bevel wheel loosely mounted on said driving shaft and meshing with said keyed bevel wheel, and means for rotatingsa'id second bevel wheel to rotate said independently of said rotary frame.

2. Intheapparatusasspecifledin claim Lthe clock. comprising in tion a movement, a control wheel adapted to be rotated one tooth by u said movement every 24 hours, and an adjusting lever influenced by said control wheel to determine the running speed of the clock.

PAULA DOBTAL. 

